CN103795452B - Probe request for relay discovery - Google Patents

Probe request for relay discovery Download PDF

Info

Publication number
CN103795452B
CN103795452B CN201310533451.7A CN201310533451A CN103795452B CN 103795452 B CN103795452 B CN 103795452B CN 201310533451 A CN201310533451 A CN 201310533451A CN 103795452 B CN103795452 B CN 103795452B
Authority
CN
China
Prior art keywords
radio communication
communication device
communication devices
devices
relay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310533451.7A
Other languages
Chinese (zh)
Other versions
CN103795452A (en
Inventor
黄钊岳
马修·詹姆斯·菲舍尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avago Technologies International Sales Pte Ltd
Original Assignee
Avago Technologies Fiber IP Singapore Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avago Technologies Fiber IP Singapore Pte Ltd filed Critical Avago Technologies Fiber IP Singapore Pte Ltd
Publication of CN103795452A publication Critical patent/CN103795452A/en
Application granted granted Critical
Publication of CN103795452B publication Critical patent/CN103795452B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15507—Relay station based processing for cell extension or control of coverage area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/12—Network monitoring probes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a probe request for relay discovery. A relay wireless communication device is discovered by using probe request. A source device that intends to transmit one or more frames to a destination device transmits the probe request to request a probe response from one or more potential relay devices. A relay device transmits a probe response to the source device when the relay device may operate to forward the one or more frames from the source device to the destination device. The relay device employs one or more considerations to determine its eligibility to serve as relay for the source and destination devices. The source device selects one of the potential relay devices based on their provided probe responses. The source device may select an optimal relay device based upon two or more received probe responses..

Description

For the probe requests thereby that relaying finds
Cross reference Patents/patent application
Prioity claim
This application claims the priority of following U.S. Patent application, full text heres of these applications are incorporated herein for ginseng Examine, and effectively form the part of the application：
1. on October 31st, 2012 submit to it is entitled " Relay within single user, multiple user, The pending U.S. Provisional Patent Application of multiple access, and/or MIMO wireless communications " No. 61/720,770.
2. on 2 20th, 2013 submit to it is entitled " Relay within single user, multiple user, The pending U.S. Provisional Patent Application of multiple access, and/or MIMO wireless communications " No. 61/766,795.
3. on April 23rd, 2013 submit to it is entitled " Relay within single user, multiple user, The pending U.S. Provisional Patent Application of multiple access, and/or MIMO wireless communications " No. 61/814,945.
4. on May 3rd, 2013 submit to it is entitled " Relay within single user, multiple user, The pending U.S. Provisional Patent Application of multiple access, and/or MIMO wireless communications " No. 61/819,238.
5. on May 13rd, 2013 submit to it is entitled " Relay within single user, multiple user, The pending U.S. Provisional Patent Application of multiple access, and/or MIMO wireless communications " No. 61/822,504.
6. entitled " the Buffer relay management within single for submitting on May 13rd, 2013 User, multiple user, multiple access, and/or MIMO wireless communications' " is pending U.S. Provisional Patent Application the 61/822,510th.
7. entitled " the Probe request for relay discovery within for submitting on July 26th, 2013 single user,multiple user,multiple access,and/or MIMO wireless The pending U.S. Provisional Patent Application of communications " the 61/858,737th.
8. in the U.S. Patent Application No. 13/958,784 of the submission on the 5th of August in 2013.
Technical field
The disclosure relates generally to communication system；More specifically, be related to single user, multi-user, multiple access and/or Relaying and relay in mimo wireless communication finds.
Background technology
Communication system supports the wireless and wire communication between wireless and/or wire communication device.These systems can have Have from country and/or international cell telephone system to the Internet, to the scope of point-to-point home wireless network, and can be according to one Individual or multiple communication standards are operated.For example, wireless communication system can be operated according to one or more standards, these marks Standard includes but is not limited to IEEE802.11x（Wherein, x can be various extensions, for example, a, b, n, g etc.）, it is Bluetooth, senior Mobile phone is serviced（AMPS）, numeral AMPS, global system for mobile communications（GSM）Deng and/or its change.
In some cases, using single-input single-output（SISO）Communication, in emitter（TX）And receptor（RX）Between Carry out radio communication.Another kind of radio communication is single input and multi-output（SIMO）, wherein single TX process data into transmit to The radiofrequency signal of receptor, the receptor includes plural antenna and plural RX paths.
Another type of radio communication is multiple input single output（MISO）, wherein TX include plural transmission path, One appropriate section of baseband signal is each converted into radio frequency by each transmission path respectively（RF）Signal, by corresponding antenna By these radio signal transmissions to receptor.Another kind of radio communication is multiple-input and multiple-output（MIMO）, wherein TX and RX is each Include multiple paths respectively so that TX carrys out parallel data processing using room and time encoding function, plural to produce Data flow, and RX receives multiple radiofrequency signals, these RX paths utilization spaces and time encoding function by multiple RX paths To regain data flow.
In these wireless communication systems, long range between the devices can cause problem and reduce communication performance.Example Such as, with the increase of distance between the devices, decline and other undesired effects may be reduced between the devices The performance and effect of communication.
The content of the invention
The invention provides a kind of radio communication device, including：Communication interface, is configured to：Reception is included for supporting The probe requests thereby of the link budget requirements of the communication between first other radio communication devices and second other radio communication devices； And during probe response is sent to into described first other radio communication devices and described second other radio communication devices extremely It is few one；And processor, it is configured to respond to the probe requests thereby：Identification is in the radio communication device and described first The first performance of the first communication link between other radio communication devices；Identification is in the radio communication device and described second Second performance of the second communication link between other radio communication devices；And when the first performance and second performance Meet or more than the link budget requirements and when the radio communication device has the ability to support the communication, generate the detection Respond to indicate that the radio communication device is adapted for use as the repeater of the communication.
In above-mentioned radio communication device, the processor is configured to：By holding to first communication link The estimation of the channel of row first, recognizes the first performance；And by performing second channel estimation to second communication link, know Not described second performance.
In above-mentioned radio communication device, the processor is configured to based on the current of the radio communication device Available process resource, past process history, the communication for currently carrying out, past communication history and previous relaying At least one of service is determining the ability of the radio communication device.
Above-mentioned radio communication device is further included：The communication interface is configured to from described first other nothings In line communicator and described second other radio communication devices described at least one receives relay selection signal；And it is described Processor is configured in response to the relay selection signal, is facilitated via first communication link and described second The communication of the communication link between described first other radio communication devices and described second other radio communication devices.
In above-mentioned radio communication device, the radio communication device is configured to based on the first modulating-coding collection （MCS）First is received from described first other radio communication devices to communicate, and based on relatively more higher or lower than a MCS Second MCS of rank, by the second communication described second other radio communication devices are sent to.
Above-mentioned radio communication device is further included：STA that wall or power line are powered or wall or power line power SMSTA, wherein, described first other radio communication devices be battery powered radio station（STA）Or battery powered intelligence Ammeter station（SMSTA）.
Above-mentioned radio communication device is further included：First radio station（STA）Or intelligent electric meter station（SMSTA）, wherein, institute It is the 2nd STA or SMSTA to state first other radio communication devices, and described second other radio communication devices are access point（AP）, And a STA or SMSTA is located at the outside of the service coverage area of the AP.
Above-mentioned radio communication device is further included：Radio station（STA）Or intelligent electric meter station（SMSTA）, wherein, described One other radio communication devices are another radio station（STA）Or another intelligent electric meter station（SMSTA）, and described second other are wireless Communicator is access point（AP）.
Present invention also offers a kind of radio communication device, including：Communication interface, is configured to：Send probe requests thereby, institute State the link budget requirements that probe requests thereby includes with regard to the application of function as repeater；The repeater is suitable as from instruction At least two of multiple other radio communication devices other radio communication devices receive at least two probe responses；To at least one Individual frame is sent to the repeater for being transmitted to destination's radio communication device；And processor, it is configured to from being used as A radio communication device is selected at least two radio communication devices of the repeater.
In above-mentioned radio communication device, the first probe response at least two probe response be based on it is described at least The first performance of the first communication link between the first device of two other radio communication devices and the radio communication device And the first device of at least two other radio communication devices be used as the radio communication device with it is described The first ability of the repeater of the communication between destination's radio communication device；The first ability is based on described at least two The first device of individual other radio communication devices is currently available that process resource, past process history, currently At least one of communication, past communication history and previous relay services for carrying out；At least two probe response In the second probe response based at least two other radio communication devices second device and the radio communication device Between the second communication link the second performance and at least two other radio communication devices the second device use Act on the second energy of the repeater of communication between the radio communication device and destination's radio communication device Power；And the second ability being currently available that based on the second device of at least two other radio communication devices In process resource, past process history, the communication for currently carrying out, past communication history and previous relay services At least one.
Above-mentioned radio communication device is further included：Communication interface, is configured to based on the first modulating-coding collection（MCS）Will First communication is sent to the repeater, wherein, the repeater is configured to based on than a MCS relatively more High or other 2nd MCS of even lower level, by the second communication destination's radio communication device is sent to.
Above-mentioned radio communication device is further included：Battery powered radio station（STA）Or battery powered intelligent electric meter Stand（SMSTA）, wherein, the repeater is the SMSTA that the STA that wall or power line are powered or wall or power line are powered.
Above-mentioned radio communication device is further included：Radio station（STA）Or intelligent electric meter station（SMSTA）, wherein, it is described in After device be another STA or SMSTA, and destination's radio communication device be access point（AP）.
The invention provides a kind of method performed by radio communication device, methods described includes：Reception is included for propping up The detection for holding the link budget requirements of the communication between first other radio communication devices and second other radio communication devices is asked Ask；In response to the probe requests thereby：Identification is between the radio communication device and described first other radio communication devices The first performance of the first communication link；Identification is between the radio communication device and described second other radio communication devices Second performance of the second communication link；And when the first performance and second performance meet the link budget requirements and When the radio communication device has the ability to support the communication, generate probe response and be suitable for indicating the radio communication device Repeater as the communication；By the probe response be sent to described first other radio communication devices and described second its At least one of his radio communication device.
Said method is further included：By performing the estimation of the first channel to first communication link, described the is recognized One performance；And by performing second channel estimation to second communication link, recognize second performance.
Said method is further included：Process resource, past place are currently available that based on the radio communication device Manage at least one of history, communication, past communication history and previous relay services for currently carrying out to determine The ability of the radio communication device.
Said method is further included：From described first other radio communication devices and described second other radio communication dresses In putting described at least one receives relay selection signal；And in response to the relay selection signal, facilitate via described One communication link and second communication link are in described first other radio communication devices and described second other radio communications The communication between device.
Said method is further included：Based on the first modulating-coding collection（MCS）From described first other radio communication devices Receive first to communicate；And the second MCS based on rank relatively more higher or lower than a MCS, the second communication is sent To described second other radio communication devices.
In said method, the radio communication device is that the STA that wall or power line are powered or wall or power line are supplied The SMSTA of electricity, and described first other radio communication devices are battery powered radio station（STA）Or battery powered intelligence electricity Table station（SMSTA）.
In said method, the radio communication device is the first radio station（STA）Or intelligent electric meter station（SMSTA）, it is described First other radio communication devices are the 2nd STA or SMSTA, and described second other radio communication devices are access point（AP）, and And a STA or SMSTA is located at the outside of the service coverage area of the AP.
Description of the drawings
Fig. 1 is the diagram of one or more embodiments for illustrating wireless communication system；
Fig. 2 is the diagram of an example for illustrating radio communication device；
Fig. 3 is to be shown with showing for the example that relay wireless communications device is communicated between radio communication device Figure；
Fig. 4 is to illustrate showing for another example communicated between radio communication device via relay wireless communications device Figure；
Fig. 5 is to illustrate showing for the example that a relay wireless communications device is selected from multiple radio communication devices Figure；
Fig. 6 is a kind of diagram of the embodiment for illustrating multiple radio communication devices, and some radio communication devices are used as intelligence Can ammeter station（SMSTA）；
Fig. 7 A are a kind of diagram of the embodiment for illustrating the method performed by one or more radio communication devices；
Fig. 7 B are the diagram of another embodiment for illustrating the method performed by one or more radio communication devices.
Specific embodiment
Fig. 1 is the diagram of one or more embodiments for illustrating wireless communication system 100.Wireless communication system 100 is wrapped Include base station and/or access point 112-116, radio communication device 118-132（For example, including radio station（STA）, stand alone type is wireless Stand and/or intelligent electric meter station（SMSTA）Device）And network hardware elements 134.Radio communication device 118-132 can be Kneetop computer or panel computer 118 and 126, personal digital assistant 120 and 130, PC 124 and 132 and/or honeycomb electricity Words 122 and 128.With reference to Fig. 2, the details of the embodiment of this radio communication device is more fully described.
Base station（BS）Or access point（AP）112-116 is operatively coupled to via LAN connection 136,138 and 140 The network hardware 134.The network hardware 134 can be router, switch, bridge, modem, system controller etc., and it is logical Letter system 100 provides wide area network connection 142.Each in base station or access point 112-116 is respectively provided with the antenna or antenna of correlation Array, so as to the wireless device communication in its region.Generally, radio communication device and specific base station or access point 112-114 is registered, to receive service from communication system 100.For being directly connected to（That is, point-to-point communication）, radio communication Device is directly communicated via the channel for being distributed.
Due to a variety of causes, because decay, distance, disturb, die down/invalid communication link etc. and/or other infringements may Negatively affect in various devices（BS/AP or STA）Between communication.Further, since some reasons（For example, it is impossible to which support can The video throughput of acceptance）, the performance level of the communication link between two devices at least may also can not to a certain extent Receive.In this case, any one device 118-132 and 112-116 can be used as repeater, in device 118-132 And 112-116 two other between communicated.In view of an operational instances, cell phone 122 may not support with The communication of BS/AP114.In this case, PC（PC）124 can be used to supporting cell phone 122 and BS/AP114 it Between communication.Can be relayed in either direction, so as to any one PC124 or BS/AP114 enters as source radio communication device Row is operated, and cell phone 122 is operated as destination's radio communication device, and vice versa.In an operational instances In, PC124 can be from the receiving frame of cell phone 122（Jump V11）, and PC124 can be operated to generate relaying as repeater Frame, and repeater frame is sent to into BS/AP114（Jump V12）.Or, can be relayed in the opposite direction.
Consider an operational instances, PC132 may not support to be communicated with BS/AP116.In this case, it is individual Personal digital assistant（PDA）130 can be used to support the communication between PC132 and BS/AP116.In an operational instances, PDA130 Can be from PC132 receiving frames（Jump V21）, and PDA130 can be operated to generate repeater frame as repeater, and by repeater frame It is sent to BS/AP116（Jump V22）.Or, can be relayed in the opposite direction.
Note, for simplicity, herein can be using source, relaying and destination（Or source device, relay and Destination device or other this equivalents）Replacement source radio communication device, relay wireless communications device and destination are wireless Communicator.Generally, radio communication device（Or device）Can be used as in two other radio communication devices（Or device）Between Repeater operated.
Relay can receive probe requests thereby from source device.Probe requests thereby is supported in source device including link budget requirements Communication and destination device between.This link budget information can be corresponding with various parameters, including acceptable handling capacity, symbol Number rate, bit rate, signal to noise ratio（SNR）, interference, noise etc. and/or any other information of communication link can be characterized.Relay Between the first performance and relay and destination device of the first communication link between identification relay and source device The second communication link the second performance.Meet in the first and second performances or want more than link budget specified in probe requests thereby When asking, and when relay can support the communication between source and destination device, relay generates probe response And source device is sent it to, to represent that relay can act as the relaying communicated between source and destination device Device.
Fig. 2 is the diagram of an example 200 for illustrating radio communication device.Generally, the initial in figure WDEV is used to recognize radio communication device.Radio communication device 1（For example, as with reference to Fig. 1, it can be in device 118-132 Any one in any one or device 112-116）With another radio communication device 2（For example, as with reference to Fig. 1, it can also be dress Put in other any one or the device 112-116 in 118-132 it is other any one）Communicated.Radio communication device 1 includes Communication interface 212, for carrying out sending and receiving for one or more frames（For example, using transmitter 213 and receptor 214）.Radio communication device 1 also includes the memorizer 218 of processor 217 and correlation, for performing various operations, including Explanation is sent to one or more frames that are radio communication device 2 and/or receiving from radio communication device 2.Radio communication device 2 Equally include communication interface 222（For example, including transmitter 223 and receptor 224）And processor 227 and with memorizer 228。
It will be appreciated by the skilled addressee that according to the configuration needed for any in one or more integrated circuits or Combination or element, module etc., using one or more integrated circuits, are capable of achieving the radio communication device 1 and 2 of Fig. 2.Arbitrary nothing Line communicator 1 and 2 may also include more than one antenna, for according at least one multi input and multi output signaling（Example Such as, according to SIMO, MISO or MIMO）Send and receive signal.In an operational instances, radio communication device 1 can use Make the repeater between radio communication device 2 and another radio communication device.Or, radio communication device 2 can be used as in nothing Repeater between line communicator 1 and another radio communication device.
Fig. 3 is to be shown with the example 300 that relay wireless communications device is communicated between radio communication device Diagram.Generally, the radio communication device operation for showing in the base section of diagram is to show for the upper left corner in diagram First other radio communication devices and communicated between second other radio communication devices that the upper right corner of diagram shows Repeater.Any one in these three devices can as in device 118-132 and 112-116 any one realizing, such as with reference to Fig. 1 It is described.
Due to any one of many reasons, institute may be not implemented between first other devices and second other devices The communication link for needing, or the communication link can not acceptably support required communication between the devices.For example, One and second other devices may exceed mutual scope.In another example, second other devices can be access point（AP）, The service coverage of the access point does not expand to first other devices.
In the device that the bottom of the figure shows（That is, relay）From first, other devices receive probe requests thereby.First its His device is intended to support that other devices are communicated with second.Relay recognizes the first communication link with first other devices First performance and the second performance with the second communication link of second other devices.In an operational instances, relaying dress Put the information that can respectively receive from first other devices and second other devices about this first and second performance.In another behaviour In making example, relay can recognize this first and second according to the earlier communication carried out with first and second other devices Performance.This determination of the first and second performances can be based on the signal to noise ratio related to previous communication（SNR）, detected and/ Or correction number of errors, carry out or need to be retransmitted（If any）Amount, the bit supported or symbol rate etc. and/ Or any other information related to previous communication.In another operational instances, relay can detect one or more Frame is sent to first and second other devices, and subsequently from first and second other devices reception channel estimations or characterization information. In another operational instances, relay can receive one or more detection frames from first and second other devices, and subsequently locate One or more of detection frames are managed, to carry out channel estimation to the first and second communication links.Generally, relay can be used Any one of various ways are recognizing this first and second performance.
Relay determines that it is adapted for use as according to the first and second performances of the first and second communication links One and second repeater communicated between other devices, and determine that the relay can act as repeater.At some In the case of, the first and second performances of the first and second communication links acceptably meet or more than the regulation in probe requests thereby Link budget requirements, but the relay cannot act as repeater.For example, the relay may be busy with performing other tasks Or support that other communicate.The relay can be in multiple Considerations any one come determine its can act as relaying Device, the currently available process resource of these Considerations including relay, past process history, is currently carried out Communication, past communication history and previous relay services.
In an operational instances, relay is contemplated that the information in the memorizer being stored in relay（For example, Past process history, past communication history and previous relay）And the current operation status of relay（Example Such as, its current processing operation and its at present communication of support）.Additionally, other features of relay can be used to determine that it is adapted to In as relaying.For example, relay can be the device that battery powered device or wall or power line are powered.With battery The device of power supply is compared, and the device preferably powered by wall or power line is relayed.So, it is that battery is supplied in relay During the device of electricity, or even advise in probe requests thereby when the first and second performances of the first and second communication links acceptably meet During fixed link budget requirements, also can determine that the relay cannot act as being communicated between first and second other devices Repeater.When relay determination cannot act as repeater, any probe response is not supplied to first by the relay Other devices.However, determining the repeater that cannot act as being communicated between first and second other devices in relay When, and acceptably meet or more than the link budget requirements specified in probe requests thereby in the first and second communication links When, relay generates probe response and sends it to first other devices.
Fig. 4 is to illustrate another example 400 communicated between radio communication device via relay wireless communications device Diagram.As Fig. 3, in the figure, the radio communication device operation shown in the base section of diagram is in diagram The upper left corner first other radio communication devices for showing and second other radio communication devices shown in the upper right corner of diagram Between the repeater that communicated.Any one in these three devices can be used as any one in device 118-132 and 112-116 To realize, as described with reference to FIG. 1.
In an operational instances, first other devices receive probe response from relay, during the probe response is represented After the repeater that device can act as being communicated between first and second other devices.First other devices can be from more than one Individual potential relay receives more than one probe response.Then, first device selects a probe response means to be used as Relay, and relay selection signal is sent, the relay selection signal represents that chosen which potential relay is used Make repeater.In another operational instances, second other devices are operated, to select a probe response means to be used as relaying Device.When relay is chosen as according to relay selection signal, relay is facilitated and being existed via the first and second communication links The communication carried out between first and second other communicators.It is furthermore noted that can differently support logical via first and second The different communication of letter link.For example, the first modulating-coding collection can be based on via the first communication of the first communication link（MCS）, and And the second communication via the second communication link can be based on the second MCS with rank relatively more higher or lower than a MCS.
First MCS can be with the first bit rate or symbol rate, the first encoding rate and/or the first code type（For example, entangle in forward direction It is wrong（FEC）Or error correcting code（ECC）Those used in coding）, first modulation（For example, its star is mapped according to the first symbol label First constellation of seat point）One or more in are corresponding, and the 2nd MCS can with the second bit rate or symbol rate, second Encoding rate and/or the second code type（For example, FEC or ECC is encoded）, second modulation（For example, its constellation is mapped according to symbol label The constellation of point）One or more in are corresponding.Consider a this operational instances, a MCS can be with the ratio of X bits per second Special rate（Wherein, X is certain needed number）, using Y encoding rates（Wherein, Y encoding rates for needed for certain）Turbine（turbo）Compile Code, 16 quadrature amplitude modulation（QAM）One or more in are corresponding, and the 2nd MCS can be with the bit of A bits per second Rate（Wherein, A is certain needed number, and it is more than or less than X）, using B encoding rates（Wherein, B encoding rates for needed for certain, its More than or less than Y）Low-density checksum（LDPC）Coding, 32 APK amplitude phase shift keyings（APSK）One or more in It is corresponding.The various examples of certain form of FEC or ECC codings include repetition, ratioless/unrelated with ratio, Read-Solomon （RS）, convolution, turbine, turbo trellis coded modulation（TTCM）, low-density checksum（LDPC）、BCH（Bose、Ray- Chaudhuri and Hocquenghem）Deng.Various modulation examples include binary phase shift keying（BPSK）, quadrature amplitude modulation （QAM）/ QPSK（QPSK）, higher order QAM（For example, 16QAM, 64QAM etc.）, various forms of phase-shift keying (PSK)s （PSK）（For example, 8-PSK）, various forms of APK amplitude phase shift keyings（APSK）Deng.Generally, can be come using different operating parameters Support for the communication of each in the first and second communication links.
Fig. 5 is to illustrate the example 500 that a relay wireless communications device is selected from multiple radio communication devices Diagram.Radio communication device in the figure can be any one in device 118-132 and 112-116, as with reference to Fig. 1 institutes State.Device " A " sends the probe requests thereby that can be received by more than one potential relay, such as device " B ", " C ", " D " Until shown in " E ".Subsequently, two or more reception probe responses of device A from these potential relays.At one In operational instances, device " A " receives the first probe response from device " B ", and receives the second probe response from device " E ".So Afterwards, device " A " selecting device " B " or device " E " are being used as the relaying for being communicated between device " A " and another device Device.Subsequently, any one during relay selection signal is sent to device " B " or device " E " by device " A ", whichsoever device Have already been selected is as repeater.When probe response is received from more than one potential relay, device " A " basis is appointed One or more Considerations select one in these devices to be used as repeater.The example of this Consideration may include to dive Relay the service previously as repeater, be wall power or power line power, be currently available that process money Source, past process history, the communication for currently carrying out, past communication history etc..
Fig. 6 is a kind of diagram of the embodiment 600 for illustrating multiple radio communication devices, and some radio communication devices are used as Intelligent electric meter station（SMSTA）.The SMSTA is realized in the various positions in the environment including building or structure.Some are wireless Communicator is capable of achieving the communication to support to be associated with the arbitrary monitoring in a variety of conditions, parameter etc. and/or sensing. The information of such sensing/monitoring is supplied to one or more other radio communication devices by these radio communication devices.（Example Such as, it is supplied to AP from SMSTA）.
SMSTA has and radio station（STA）Similar communication function and it is also operable to be monitored and/or sense phase The communication of pass information.In some applications, such device is only operated on rare occasions.For example, with such dress Put in battery saving mode（For example, operator scheme, under powered operator scheme that sleep pattern, function are reduced etc.）Time period When comparing, time period of operation is by contrast can be very little（For example, only the device in such battery saving mode when Between section a few percent）.
SMSTA can wake up from such battery saving mode, be only used for performing some operations.For example, such device can be from Wake up in such battery saving mode, so that one or more parameters, condition, constraint etc. are sensed and/or be measured.Such During operation（For example, device is not in battery saving mode）, the device can be by such information transfer to another channel radio T unit（For example, access point（AP）, another SMSTA, radio station（STA）Or operation is such SMSTA or STA of AP Deng）.
In SMSTA environment, multiple corresponding radio communication devices are capable of achieving（For example, SMSTA）, will with monitoring and/ Or the information of sensing correlation is transmitted to a specific radio communication device, the device is grasped as manager, coordinator etc. Make, such as can be by access point（AP）Or as the radio station of AP operations（STA）Realize.This SMSTA is capable of achieving multiple to carry out It is any in data forwarding, monitoring and/or inductive operation.For example, under the background of building or structure, can have and be supplied to this Multiple services of building or structure, these scopes include natural gas service, electrical service, TV service, Internet service etc.. Alternatively, in whole environment, different corresponding monitors and/or sensor are capable of achieving, it is related to parameter to carry out（It is not special It is fixed related to service）Monitoring and/or sensing.As some examples, can be by various positions and for the realization of various mesh The corresponding monitors of difference and/or sensor carrying out the half-open detection of motion detection, door, temperature survey（And/or other air And/or environmental measurement）Deng.Communication from SMSTA may be extremely important and be still quite performed less.
The protocol/standard for being suitable for the current exploitation of this measurement application is intended to in the international spectrum less than 1GHz The application of the long range and low rate that are operated.It is different in each national available frequency spectrum and need flexible design, To adapt to different selections, and the application of this long range and low rate is designed to adapt to answer with lower data rate With related longer delay extension.
Consider an operational instances, due to any one in many reasons, the SMSTA of long range positioning may not support with Manager/coordinator device is communicated.For example, the object similar to fence may prevent the SMSTA and pipe in long range positioning Communicated between reason device/coordinator device.In this case, relay（For example, another SMSTA or STA）Can be used for Support is communicated between the SMSTA and manager/coordinator device of long range positioning.In an operational instances, relaying dress Putting can be from the SMSTA receiving frame of long range positioning（Jump V1）, and relay operated as repeater, to generate repeater frame And send it to manager/coordinator device（Jump V2）.Or, can be relayed in the opposite direction.
Fig. 7 A are a kind of diagram of the embodiment for illustrating the method 701 performed by one or more radio communication devices. Method 701 is by receiving the chain included for supporting in first other communications carried out and second other radio communication devices between The probe requests thereby of road budgetary request starts, as shown in block 710.In response to probe requests thereby, by identification in radio communication dress Put and the first communication link between first other radio communication devices first performance, and also by identification in radio communication Second performance of the second communication link between device and second other radio communication devices, radio communication device is operated, As shown in frame 720.
The first and second performances meet or more than link budget requirements and radio communication device can support communication when, By generating the probe response for indicating the repeater that radio communication device is adapted for use as the communication, method 701 is operated, such as Shown in frame 730.Then, by probe response is sent in first and second other radio communication devices at least one Individual, method 701 is operated, as shown in frame 740.
Or, fail acceptably to meet or more than link budget requirements and/or radio communication in the first and second performances When device can not support the communication, method 701 terminates.When arbitrary essential condition is not met, radio communication device need not give birth to Into or send probe response.
Fig. 7 B are the diagram of another embodiment for illustrating the method 702 performed by one or more radio communication devices. By the way that probe requests thereby to be sent to the multiple radio communication devices that can be used potentially as repeater, method 702 is operated, such as existed Shown in frame 711.Then, by from these radio communication devices two or more receive probe responses, method 702 after It is continuous, as shown in frame 721.Ring from having determined that its those potential relay for being adapted for use as repeater receives to detect Should.The potential relay for being not suitable for repeater does not send probe response.Then, by selecting a potential relaying dress Put to be used as in two related devices（For example, source device and destination device）Between the repeater that communicated, method 702 enters Row operation.Then, by the way that one or more frames are sent to into selected relay for being transmitted to destination device, side Method 702 continues.
The use of the probe requests thereby for relaying discovery is had been described in the disclosure.According to the pre- of given communication link Calculate（For example, between AP and STA）, this link budget information can also be comprised in path request（PREQ）It is interior, to allow to subtract Few response.Given radio communication device（For example, STA or SMSTA, or or even AP）Determine that relaying is required, and subsequently can In the case of energy, this information can be sent to destination device.Then, potential relay recognize respectively itself with The link-quality of the communication link between source and destination device.Potential relay is determined if according to this information can It is used as the ability of repeater as repeater and potential relay.If potential relay is adapted for use as relaying Device, then potential relay probe requests thereby is given a response（For example, give a response to the device for sending probe requests thereby）.
It should be noted that can perform in radio communication device various operations described in various methods herein and Function（For example, the processor 217 for such as describing by referring to Fig. 2 and communication interface 218 or processor 227 and communication interface 228 And/or the other elements in it）.Generally, the communication interface and processor in radio communication device can perform this operation.
The example of some components may include one or more baseband processing modules, one or more medium access control （MAC）Layer, one or more physical layers（PHY）And/or other assemblies etc..For example, such baseband processing module（Sometimes with nothing Line electricity, AFE (analog front end)（AFE）Etc. combining）Such signal, frame for being described herein etc. can be generated, and is performed herein Described in various operations and/or its corresponding equivalent.
In some embodiments, such baseband processing module and/or processing module（It can identical device or point Realize in the device opened）The process is can perform, another nothing is transferred to generate using any number of radio and antenna The signal of line communicator.In some embodiments, it is another by the processor in first device and in second device One processor carrying out such process jointly.In other embodiments, come by the processor in a device completely Carry out such process.
The present invention is described herein with reference at least one embodiment.These embodiments of the present invention have been borrowed Help illustrate the physically and/or logically construction package of component and by means of the method for the performance and relation for illustrating its concrete function Step is describing.For the ease of description, the boundary of herein artificially defined these functional components and method and step and suitable Sequence.As long as being appropriately performed concrete function and relation, so that it may define alternative boundary and order.Therefore, any these alternative boundaries Limit or order are within the scope of the appended claims and essence is interior.And for the ease of description, artificially defined these features The boundary of component.As long as being appropriately performed some important functions, so that it may define alternative boundary.Similarly, also people herein To define flowchart block, to illustrate some important functions.In the degree for using, can definitim flow figure square frame in addition Boundary and order simultaneously still perform some important functions.Therefore, these of functional component and flowchart block and order can Selected justice is in required the scope of the present invention and essence.Those skilled in the art should also be appreciated that feature structure Part square frame and other illustrative blocks, module and component can be according to shown in illustrated realizations, or by discrete component, special Integrated circuit, perform processor of appropriate software etc. or its combination in any to realize.
As may be used herein, term " processing module ", " process circuit ", " process circuit ", and/or " process list Unit " can be a processing meanss or multiple processing meanss.Such processing meanss can be according to the hard coded of circuit and/or Operational order is manipulated（Analog or digital）The microprocessor of signal, microcontroller, digital signal processor, pico computer, central authorities Processing unit, field programmable gate array, programmable logic device, state machine, logic circuit, analog circuit, digital circuit, And/or any device.Processing module, module, process circuit and/or processing unit can be or further include memorizer and/ Or integral memory element, it can be single memory device, multiple storage arrangements, and/or another processing module, mould The built-in circuit of block, process circuit and/or processing unit.Such storage arrangement can be that the read-only of storage of digital information is deposited Reservoir, random access memory, volatile memory, nonvolatile memory, state machine, dynamic memory, flash memory, High-speed memory, and/or any device.If it should be noted that processing module, module, process circuit and/or processing unit bag Include more than one processing meanss, then these processing meanss can concentrate placement（For example, by wiredly and/or wirelessly total knot Structure is directly coupled to together）Or it is separated（For example, coupled indirectly by LAN and/or wide area network, so as to enter to rack Calculate）.And, it is noted that, if processing module, module, process circuit and/or processing unit are by state machine, simulation Circuit, digital circuit, and/or logic circuit perform one or more function, then the storage of the corresponding operational order of storage Device and/or memory component can be embedded in the circuit including state machine, analog circuit, digital circuit, and/or logic circuit or It is external to the circuit.It is also noted that memory component can store hard coded and/or operational order, and processing module, mould Block, process circuit and/or processing unit perform hard coded and/or operational order, these instructions with one or more of the drawings At least some step for illustrating and/or function are corresponding.Such storage arrangement or memory component can be included in product.
The term " substantially " and " about " that can be used herein provides industrial acceptable appearance for its corresponding term Dependency between difference and/or article.The scope of this industrial acceptable tolerance is corresponded to from less than 1% to 50% But it is not limited to component value, integrated circuit processing variation, temperature change, lifting time and/or thermal noise.This phase between article The scope of closing property is from the difference of several percentage ratios to magnitude difference.As may be used herein, term " being configured to ", " can Be operatively coupled to ", the direct coupling that is included between object of " being couple to ", and/or " coupling " and/or pass through between object Intermediate article（For example, object includes but is not limited to component, part, circuit and/or module）The indirect coupling for carrying out, wherein for The example for coupling indirectly, intermedium does not change signal message, but can adjust its current level, voltage level and/or work( Rate level.As can be further used herein, coupling is inferred（That is, one part is coupled with another part by inferring） The directly or indirectly coupling being included between two objects, its mode is identical with " being couple to ".Such as herein can be further Use, term " being configured to ", " being operable to ", " being couple to " or " being operably coupled to " represent object include one or Multiple power connections, input, output etc., they perform one or more corresponding functions of object in activation, and these belong to Couple in the deduction that can further include one or more other objects.As can also further used herein, term The directly and/or indirectly coupling of the separate object of " association " expression and/or an object are embedded in another object.
Unless clear and definite state on the contrary, otherwise herein shown in any accompanying drawing in transmit to the signal of part, from The signal, and/or signal between the parts sent in part can be analog or digital, continuous time or discrete time And it is single-ended or difference.For example, if signal path is shown as single-ended path, then the signal path also illustrates that differential signal Path.Equally, if signal path is shown as differential path, then the signal path also illustrates that single ended signal paths.This area Technical staff will appreciate that, although one or more specific frameworks are described herein, but are equally capable of achieving to use One or more data/address bus for being not explicitly depicted, being directly connected to, and/or indirect between miscellaneous part between elements Other frameworks of coupling.
Term " module " used in the description of one or more embodiments.Module includes storage place on a memory Reason module, functional device, hardware, and/or software, for performing the one or more functions that can be described herein.It is noted that It is, if realizing the module by hardware, then hardware can be operated dividually and/or in combination with software and/or firmware.Also As it is used in the present context, module can include one or more submodules, each submodule can be one or more modules.
Although explicitly described herein one or more embodiments various functions and feature it is specific Combination, but these features and function can also be with other combinations.Disclosure of the invention is not subject to herein disclosed The restriction of particular example, and clearly comprising these other combinations.

Claims (10)

1. a kind of radio communication device, including：
Communication interface, is configured to：
Reception includes the chain for supporting the communication between first other radio communication devices and second other radio communication devices The probe requests thereby of road budgetary request；And
During probe response is sent to into described first other radio communication devices and described second other radio communication devices extremely It is few one；And
Processor, is configured to respond to the probe requests thereby：
The first of first communication link of the identification between the radio communication device and described first other radio communication devices Performance；
The second of second communication link of the identification between the radio communication device and described second other radio communication devices Performance；And
When the first performance and second performance meet or more than the link budget requirements and the radio communication device When having the ability to support the communication, generate the probe response and be adapted for use as the communication to indicate the radio communication device Repeater.
2. radio communication device according to claim 1, wherein, the processor is configured to：
By performing the estimation of the first channel to first communication link, the first performance is recognized；And
By performing second channel estimation to second communication link, second performance is recognized.
3. radio communication device according to claim 1, wherein, the processor is configured to based on the nothing Line communicator is currently available that process resource, past process history, the communication for currently carrying out, past communication are gone through At least one of history and previous relay services are determining the ability of the radio communication device.
4. radio communication device according to claim 1, further includes：
The communication interface is configured to from described first other radio communication devices and described second other channel radios At least one of T unit receives relay selection signal；And
The processor is configured in response to the relay selection signal, facilitate via first communication link and Institute of second communication link between described first other radio communication devices and described second other radio communication devices State communication.
5. radio communication device according to claim 4, wherein, the radio communication device is configured to be based on First modulating-coding collection receives first and communicates from described first other radio communication devices, and based on than first modulating-coding Second modulating-coding collection of the relatively higher or lower rank of collection, by the second communication described second other radio communication dresses are sent to Put.
6. a kind of radio communication device, including：
Communication interface, is configured to：
Probe requests thereby is sent, the probe requests thereby includes the link budget requirements with regard to the application of function as repeater；
At least two of multiple other radio communication devices of the repeater other radio communication devices are suitable as from instruction Receive at least two probe responses；
At least one frame is sent to into the repeater for being transmitted to destination's radio communication device；And
Processor, is configured to from as one nothing of selection in described at least two of the repeater other radio communication devices Line communicator,
Wherein,
The first probe response at least two probe response is based at least two other radio communication devices The first performance of the first communication link between first other radio communication devices and the radio communication device and it is described extremely Described first other radio communication devices of few two other radio communication devices are used as the radio communication device and institute State the first ability of the repeater of communication between destination's radio communication device；
The second probe response at least two probe response based at least two other radio communication devices the Second performance of the second communication link between two other radio communication devices and the radio communication device and it is described at least Described second other radio communication devices of two other radio communication devices be used as the radio communication device with it is described The second ability of the repeater of the communication between destination's radio communication device.
7. radio communication device according to claim 6, wherein：
The first ability is based on first other radio communication devices of at least two other radio communication devices It is currently available that process resource, past process history, the communication for currently carrying out, past communication history and previous At least one of relay services；
And
The second ability is based on second other radio communication devices of at least two other radio communication devices It is currently available that process resource, past process history, the communication for currently carrying out, past communication history and previous At least one of relay services.
8. radio communication device according to claim 6, further includes：
Communication interface, be configured to based on the first modulating-coding collection by first communication be sent to the repeater, wherein, it is described in It is configured to based on the second modulating-coding collection of rank relatively more higher or lower than the first modulating-coding collection after device, Second communication is sent to into destination's radio communication device.
9. a kind of method performed by radio communication device, methods described includes：
Reception includes the chain for supporting the communication between first other radio communication devices and second other radio communication devices The probe requests thereby of road budgetary request；
In response to the probe requests thereby：
The first of first communication link of the identification between the radio communication device and described first other radio communication devices Performance；
The second of second communication link of the identification between the radio communication device and described second other radio communication devices Performance；And
Have the ability when the first performance and second performance meet the link budget requirements and the radio communication device When supporting the communication, generate probe response and be adapted for use as the repeater of the communication to indicate the radio communication device；
The probe response is sent in described first other radio communication devices and described second other radio communication devices At least one.
10. method according to claim 9, further includes：
By performing the estimation of the first channel to first communication link, the first performance is recognized；And
By performing second channel estimation to second communication link, second performance is recognized.
CN201310533451.7A 2012-10-31 2013-10-31 Probe request for relay discovery Active CN103795452B (en)

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
US201261720770P 2012-10-31 2012-10-31
US61/720,770 2012-10-31
US201361766795P 2013-02-20 2013-02-20
US61/766,795 2013-02-20
US201361814945P 2013-04-23 2013-04-23
US61/814,945 2013-04-23
US201361819238P 2013-05-03 2013-05-03
US61/819,238 2013-05-03
US201361822504P 2013-05-13 2013-05-13
US201361822510P 2013-05-13 2013-05-13
US61/822,510 2013-05-13
US61/822,504 2013-05-13
US201361858737P 2013-07-26 2013-07-26
US61/858,737 2013-07-26
US13/958,784 US9131428B2 (en) 2012-10-31 2013-08-05 Probe request for relay discovery within single user, multiple user, multiple access, and/or MIMO wireless communications
US13/958,784 2013-08-05

Publications (2)

Publication Number Publication Date
CN103795452A CN103795452A (en) 2014-05-14
CN103795452B true CN103795452B (en) 2017-05-03

Family

ID=50479938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310533451.7A Active CN103795452B (en) 2012-10-31 2013-10-31 Probe request for relay discovery

Country Status (3)

Country Link
US (2) US9131428B2 (en)
CN (1) CN103795452B (en)
DE (1) DE102013221920B4 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX365137B (en) 2012-03-21 2019-05-24 Powercast Corp Wireless sensor system, method and apparatus with switch and outlet control.
KR102134417B1 (en) * 2013-07-04 2020-07-21 삼성전자주식회사 Communication method of an access point and a terminal for retransmission of multicast packet in a network including access point and a plurality of terminals
US10383028B2 (en) * 2013-07-30 2019-08-13 Sony Corporation Method of requesting activation of a repeater function and user equipment
US9154338B1 (en) * 2014-04-18 2015-10-06 Entropic Communications, Llc System and method for IQ imbalance estimation
WO2015192904A1 (en) * 2014-06-19 2015-12-23 Telefonaktiebolaget L M Ericsson (Publ) Apparatuses and methods therein for relaying an ongoing data session
CN105744625A (en) 2014-12-12 2016-07-06 索尼公司 Device and method for wireless communication
US10412571B2 (en) * 2015-03-24 2019-09-10 Qualcomm Incorporated Configuration by eNB for D2D UE to network relay search
US10530461B2 (en) * 2015-03-25 2020-01-07 Qualcomm Incorporated Relay discovery and association messages
CN110784899B (en) * 2015-11-05 2021-10-29 索尼公司 Electronic device and wireless communication method in wireless communication system
US10477378B2 (en) * 2016-04-22 2019-11-12 Blackberry Limited Wireless network discovery using a MIMO transceiver
US10009142B1 (en) * 2016-08-23 2018-06-26 Sprint Communications Company L.P. Control over modulation and coding schemes used by wireless relay user equipment
JP7068278B2 (en) * 2016-10-07 2022-05-16 パワーキャスト コーポレイション Automated system for lighting control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101146327A (en) * 2006-09-12 2008-03-19 华为技术有限公司 Switching method in radio relay system and radio relay system realizing this switching
CN101472318A (en) * 2007-12-26 2009-07-01 索尼株式会社 Wireless communication system, wireless communication device, wireless communication method, and program
EP2157806A1 (en) * 2007-04-13 2010-02-24 ZTE Corporation Method for joining a wireless communication device to a wireless transmission network
CN102111844A (en) * 2009-12-26 2011-06-29 华为技术有限公司 Mobile relay selection method, communication method, base station and system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7464166B2 (en) * 2003-04-11 2008-12-09 Telefonaktiebolaget Lm Ericsson (Publ) Contention-based forwarding with integrated multi-user detection capability
MXPA05012228A (en) 2003-05-28 2006-02-10 Ericsson Telefon Ab L M Method and system for wireless communication networks using relaying.
WO2006057044A1 (en) 2004-11-26 2006-06-01 Fujitsu Limited Wireless terminal and wireless communication method
EP1851889B1 (en) * 2005-02-10 2016-11-23 Telefonaktiebolaget LM Ericsson (publ) Quality-based data scheduling
KR101175813B1 (en) 2005-06-02 2012-08-24 삼성전자주식회사 System and method of congestion control in wireless mesh networks
US7599341B2 (en) * 2006-02-28 2009-10-06 Motorola, Inc. System and method for managing communication routing within a wireless multi-hop network
US7881269B2 (en) * 2006-07-26 2011-02-01 Symbol Technologies, Inc. Media type access category based channel management for a wireless network
WO2008032750A1 (en) 2006-09-13 2008-03-20 Panasonic Corporation Communication device
CN101502064B (en) 2006-11-10 2012-09-05 美国博通公司 Serial clear to send (cts) to self (cts2self) messaging procedure
KR100987219B1 (en) * 2007-06-29 2010-10-12 삼성전자주식회사 Method and system for transmitting and receving signal in wireless communication system
US8958288B2 (en) * 2008-07-14 2015-02-17 Electronics And Telecommunications Research Institute Method and apparatus for setting detour path in wideband high frequency wireless system using centralized MAC protocol
WO2010027136A1 (en) * 2008-09-03 2010-03-11 Lg Electronics Inc. Realy station and method of operating the same
US20100157826A1 (en) 2008-12-19 2010-06-24 Telefonaktiebolaget Lm Local communication between mobile stations via one or more relay stations
US8576714B2 (en) 2009-05-29 2013-11-05 Futurewei Technologies, Inc. System and method for relay node flow control in a wireless communications system
KR101637589B1 (en) 2009-06-12 2016-07-08 엘지전자 주식회사 Apparatus and method of flow control in wireless communication system
WO2010143900A2 (en) 2009-06-12 2010-12-16 Lg Electronics Inc. Apparatus and method for flow control in wireless communication system
JP2013506377A (en) 2009-09-29 2013-02-21 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュート Method and apparatus for setting up a relay link in a wireless communication system
US9066287B2 (en) * 2012-01-24 2015-06-23 Qualcomm Incorporated Systems and methods of relay selection and setup
US20130294331A1 (en) * 2012-05-03 2013-11-07 Mediatek Singapore Pte. Ltd. Method for Distributed Relay Discovery and Data Forwarding
US9794796B2 (en) * 2012-06-13 2017-10-17 Qualcomm, Incorporation Systems and methods for simplified store and forward relays

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101146327A (en) * 2006-09-12 2008-03-19 华为技术有限公司 Switching method in radio relay system and radio relay system realizing this switching
EP2157806A1 (en) * 2007-04-13 2010-02-24 ZTE Corporation Method for joining a wireless communication device to a wireless transmission network
CN101472318A (en) * 2007-12-26 2009-07-01 索尼株式会社 Wireless communication system, wireless communication device, wireless communication method, and program
CN102111844A (en) * 2009-12-26 2011-06-29 华为技术有限公司 Mobile relay selection method, communication method, base station and system

Also Published As

Publication number Publication date
CN103795452A (en) 2014-05-14
DE102013221920A1 (en) 2014-04-30
US20140119272A1 (en) 2014-05-01
US20150373620A1 (en) 2015-12-24
DE102013221920B4 (en) 2019-06-27
US9131428B2 (en) 2015-09-08
US9723539B2 (en) 2017-08-01

Similar Documents

Publication Publication Date Title
CN103795452B (en) Probe request for relay discovery
CN101743701B (en) Data communication in a cooperative communication network
Kramer et al. Cooperative communications
US8923422B2 (en) Reducing the impact of subcarrier quality evaluation
CN104067587B (en) Method and apparatus for device configuration file in wireless network
Zhao et al. An energy-efficient and cluster-parent based RPL with power-level refinement for low-power and lossy networks
WO2015168115A1 (en) Methods and apparatuses for routing over multiple input multiple output power line communication networks
Di Marco et al. TREnD: a timely, reliable, energy-efficient and dynamic wsn protocol for control applications
Hussain et al. Energy efficient virtual MIMO communication for wireless sensor networks
CN104040959B (en) The bandwidth self-adaption of ring protection state aware
CN103916214A (en) Speed frame exchange within wireless communications
US9350438B2 (en) Relay within single user, multiple user, multiple access, and/or MIMO wireless communications
CN102420673A (en) Method for limiting interference received by a plurality of sources
Girs et al. Increased reliability or reduced delay in wireless industrial networks using relaying and Luby codes
US11811636B2 (en) Increasing throughput for multi-PHY networks
CN102014085B (en) Physical-layer network coding detection method in bidirectional MIMO relay channel
Nguyen et al. A network-coding aided road-map of large-scale near-capacity cooperative communications
JP5296748B2 (en) Transmitting apparatus and transmitting method
CN104601287B (en) The relaying method for precoding of information and energy is transmitted in wireless cognition network
CN106102120B (en) It is a kind of to organize WLAN and data receiving-transmitting method from oneself of master agreement and network-building method
Park et al. RPL objective function for multihop PLC network
Peng et al. On error analysis and distributed phase steering for wireless network coding over fading channels
Stamatiou et al. Information efficiency of ad hoc networks with FH-MIMO transceivers
Purohit et al. A New Scheme for Cooperative Communication in LEACH Based Wireless Sensor Network
Kumar et al. Energy optimization for cooperative multipath routing in MANETs using network coding

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1193249

Country of ref document: HK

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20170315

Address after: Singapore Singapore

Applicant after: Avago Technologies Fiber IP Singapore Pte. Ltd.

Address before: American California

Applicant before: Zyray Wireless Inc.

GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20181019

Address after: Singapore Singapore

Patentee after: Annwa high tech Limited by Share Ltd

Address before: Singapore Singapore

Patentee before: Avago Technologies Fiber IP Singapore Pte. Ltd.

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1193249

Country of ref document: HK